#include "gdbcmd.h"
#include "regcache.h"
#include "gdb_assert.h"
+#include "gdb_string.h"
+#include "gdbcmd.h" /* For maintenanceprintlist. */
/*
* DATA STRUCTURE
long sizeof_raw_registers;
long sizeof_raw_register_valid_p;
- /* Offset, in bytes, of reach register in the raw register cache.
- Pseudo registers have an offset even though they don't
- (shouldn't) have a correspoinding space in the register cache.
- It is to keep existing code, that relies on
- write/write_register_bytes working. */
+ /* The cooked register space. Each cooked register in the range
+ [0..NR_RAW_REGISTERS) is direct-mapped onto the corresponding raw
+ register. The remaining [NR_RAW_REGISTERS
+ .. NR_COOKED_REGISTERS) (a.k.a. pseudo regiters) are mapped onto
+ both raw registers and memory by the architecture methods
+ gdbarch_register_read and gdbarch_register_write. */
+ int nr_cooked_registers;
+
+ /* Offset and size (in 8 bit bytes), of reach register in the
+ register cache. All registers (including those in the range
+ [NR_RAW_REGISTERS .. NR_COOKED_REGISTERS) are given an offset.
+ Assigning all registers an offset makes it possible to keep
+ legacy code, such as that found in read_register_bytes() and
+ write_register_bytes() working. */
long *register_offset;
-
- /* The cooked / frame / virtual register space. The registers in
- the range [0..NR_RAW_REGISTERS) should be mapped directly onto
- the corresponding raw register. The next [NR_RAW_REGISTERS
- .. NR_REGISTERS) should have been mapped, via
- gdbarch_register_read/write onto either raw registers or memory. */
- int nr_registers;
long *sizeof_register;
+
+ /* Useful constant. Largest of all the registers. */
long max_register_size;
+ /* Cached table containing the type of each register. */
+ struct type **register_type;
};
-static void *
-init_legacy_regcache_descr (struct gdbarch *gdbarch)
+void
+init_legacy_regcache_descr (struct gdbarch *gdbarch,
+ struct regcache_descr *descr)
{
int i;
- struct regcache_descr *descr;
/* FIXME: cagney/2002-05-11: gdbarch_data() should take that
``gdbarch'' as a parameter. */
gdb_assert (gdbarch != NULL);
- descr = XMALLOC (struct regcache_descr);
- descr->gdbarch = gdbarch;
- descr->legacy_p = 1;
-
/* FIXME: cagney/2002-05-11: Shouldn't be including pseudo-registers
in the register buffer. Unfortunatly some architectures do. */
- descr->nr_registers = NUM_REGS + NUM_PSEUDO_REGS;
- descr->nr_raw_registers = descr->nr_registers;
- descr->sizeof_raw_register_valid_p = descr->nr_registers;
+ descr->nr_raw_registers = descr->nr_cooked_registers;
+ descr->sizeof_raw_register_valid_p = descr->nr_cooked_registers;
/* FIXME: cagney/2002-05-11: Instead of using REGISTER_BYTE() this
code should compute the offets et.al. at runtime. This currently
isn't possible because some targets overlap register locations -
see the mess in read_register_bytes() and write_register_bytes()
registers. */
- descr->sizeof_register = XCALLOC (descr->nr_registers, long);
- descr->register_offset = XCALLOC (descr->nr_registers, long);
+ descr->sizeof_register = XCALLOC (descr->nr_cooked_registers, long);
+ descr->register_offset = XCALLOC (descr->nr_cooked_registers, long);
descr->max_register_size = 0;
- for (i = 0; i < descr->nr_registers; i++)
+ for (i = 0; i < descr->nr_cooked_registers; i++)
{
descr->register_offset[i] = REGISTER_BYTE (i);
descr->sizeof_register[i] = REGISTER_RAW_SIZE (i);
if (descr->max_register_size < REGISTER_RAW_SIZE (i))
descr->max_register_size = REGISTER_RAW_SIZE (i);
+ if (descr->max_register_size < REGISTER_VIRTUAL_SIZE (i))
+ descr->max_register_size = REGISTER_VIRTUAL_SIZE (i);
}
/* Come up with the real size of the registers buffer. */
descr->sizeof_raw_registers = REGISTER_BYTES; /* OK use. */
- for (i = 0; i < descr->nr_registers; i++)
+ for (i = 0; i < descr->nr_cooked_registers; i++)
{
long regend;
/* Keep extending the buffer so that there is always enough
if (descr->sizeof_raw_registers < regend)
descr->sizeof_raw_registers = regend;
}
- return descr;
}
static void *
struct regcache_descr *descr;
gdb_assert (gdbarch != NULL);
- /* If an old style architecture, construct the register cache
- description using all the register macros. */
- if (!gdbarch_register_read_p (gdbarch)
- && !gdbarch_register_write_p (gdbarch))
- return init_legacy_regcache_descr (gdbarch);
-
- descr = XMALLOC (struct regcache_descr);
+ /* Create an initial, zero filled, table. */
+ descr = XCALLOC (1, struct regcache_descr);
descr->gdbarch = gdbarch;
- descr->legacy_p = 0;
- /* Total size of the register space. The raw registers should
- directly map onto the raw register cache while the pseudo's are
+ /* Total size of the register space. The raw registers are mapped
+ directly onto the raw register cache while the pseudo's are
either mapped onto raw-registers or memory. */
- descr->nr_registers = NUM_REGS + NUM_PSEUDO_REGS;
+ descr->nr_cooked_registers = NUM_REGS + NUM_PSEUDO_REGS;
+
+ /* Fill in a table of register types. */
+ descr->register_type = XCALLOC (descr->nr_cooked_registers,
+ struct type *);
+ for (i = 0; i < descr->nr_cooked_registers; i++)
+ {
+ descr->register_type[i] = REGISTER_VIRTUAL_TYPE (i);
+ }
+
+ /* If an old style architecture, fill in the remainder of the
+ register cache descriptor using the register macros. */
+ if (!gdbarch_pseudo_register_read_p (gdbarch)
+ && !gdbarch_pseudo_register_write_p (gdbarch))
+ {
+ descr->legacy_p = 1;
+ init_legacy_regcache_descr (gdbarch, descr);
+ return descr;
+ }
/* Construct a strictly RAW register cache. Don't allow pseudo's
into the register cache. */
descr->nr_raw_registers = NUM_REGS;
- descr->sizeof_raw_register_valid_p = NUM_REGS;
+
+ /* FIXME: cagney/2002-08-13: Overallocate the register_valid_p
+ array. This pretects GDB from erant code that accesses elements
+ of the global register_valid_p[] array in the range [NUM_REGS
+ .. NUM_REGS + NUM_PSEUDO_REGS). */
+ descr->sizeof_raw_register_valid_p = NUM_REGS + NUM_PSEUDO_REGS;
/* Lay out the register cache. The pseud-registers are included in
the layout even though their value isn't stored in the register
cache. Some code, via read_register_bytes() access a register
using an offset/length rather than a register number.
- NOTE: cagney/2002-05-22: Only REGISTER_VIRTUAL_TYPE() needs to be
- used when constructing the register cache. It is assumed that
- register raw size, virtual size and type length of the type are
- all the same. */
+ NOTE: cagney/2002-05-22: Only register_type() is used when
+ constructing the register cache. It is assumed that the
+ register's raw size, virtual size and type length are all the
+ same. */
{
long offset = 0;
- descr->sizeof_register = XCALLOC (descr->nr_registers, long);
- descr->register_offset = XCALLOC (descr->nr_registers, long);
+ descr->sizeof_register = XCALLOC (descr->nr_cooked_registers, long);
+ descr->register_offset = XCALLOC (descr->nr_cooked_registers, long);
descr->max_register_size = 0;
- for (i = 0; i < descr->nr_registers; i++)
+ for (i = 0; i < descr->nr_cooked_registers; i++)
{
- descr->sizeof_register[i] = TYPE_LENGTH (REGISTER_VIRTUAL_TYPE (i));
+ descr->sizeof_register[i] = TYPE_LENGTH (descr->register_type[i]);
descr->register_offset[i] = offset;
offset += descr->sizeof_register[i];
if (descr->max_register_size < descr->sizeof_register[i])
don't go into infinite recursion trying to, again, create the
regcache. */
set_gdbarch_data (gdbarch, regcache_descr_handle, descr);
- for (i = 0; i < descr->nr_registers; i++)
+ for (i = 0; i < descr->nr_cooked_registers; i++)
{
gdb_assert (descr->sizeof_register[i] == REGISTER_RAW_SIZE (i));
gdb_assert (descr->sizeof_register[i] == REGISTER_VIRTUAL_SIZE (i));
xfree (descr);
}
+/* Utility functions returning useful register attributes stored in
+ the regcache descr. */
+
+struct type *
+register_type (struct gdbarch *gdbarch, int regnum)
+{
+ struct regcache_descr *descr = regcache_descr (gdbarch);
+ gdb_assert (regnum >= 0 && regnum < descr->nr_cooked_registers);
+ return descr->register_type[regnum];
+}
+
+/* Utility functions returning useful register attributes stored in
+ the regcache descr. */
+
+int
+max_register_size (struct gdbarch *gdbarch)
+{
+ struct regcache_descr *descr = regcache_descr (gdbarch);
+ return descr->max_register_size;
+}
+
/* The register cache for storing raw register values. */
struct regcache
xfree (regcache);
}
+void
+do_regcache_xfree (void *data)
+{
+ regcache_xfree (data);
+}
+
+struct cleanup *
+make_cleanup_regcache_xfree (struct regcache *regcache)
+{
+ return make_cleanup (do_regcache_xfree, regcache);
+}
+
void
regcache_cpy (struct regcache *dst, struct regcache *src)
{
for (i = 0; i < src->descr->nr_raw_registers; i++)
{
/* Should we worry about the valid bit here? */
- regcache_read (src, i, buf);
- regcache_write (dst, i, buf);
+ regcache_raw_read (src, i, buf);
+ regcache_raw_write (dst, i, buf);
}
}
return regcache->raw_register_valid_p[regnum];
}
-CORE_ADDR
-regcache_read_as_address (struct regcache *regcache, int regnum)
-{
- char *buf;
- gdb_assert (regcache != NULL);
- gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers);
- buf = alloca (regcache->descr->sizeof_register[regnum]);
- regcache_read (regcache, regnum, buf);
- return extract_address (buf, regcache->descr->sizeof_register[regnum]);
-}
-
char *
deprecated_grub_regcache_for_registers (struct regcache *regcache)
{
void
set_register_cached (int regnum, int state)
{
- register_valid[regnum] = state;
+ gdb_assert (regnum >= 0);
+ gdb_assert (regnum < current_regcache->descr->nr_raw_registers);
+ current_regcache->raw_register_valid_p[regnum] = state;
}
/* REGISTER_CHANGED
return regnum >= 0 && regnum < NUM_REGS;
}
-/* Return whether register REGNUM is a pseudo register. */
-
-static int
-pseudo_register (int regnum)
-{
- return regnum >= NUM_REGS && regnum < NUM_REGS + NUM_PSEUDO_REGS;
-}
-
-/* Fetch register REGNUM into the cache. */
-
-static void
-fetch_register (int regnum)
-{
- /* NOTE: cagney/2001-12-04: Legacy targets were using fetch/store
- pseudo-register as a way of handling registers that needed to be
- constructed from one or more raw registers. New targets instead
- use gdbarch register read/write. */
- if (FETCH_PSEUDO_REGISTER_P ()
- && pseudo_register (regnum))
- FETCH_PSEUDO_REGISTER (regnum);
- else
- target_fetch_registers (regnum);
-}
-
-/* Write register REGNUM cached value to the target. */
-
-static void
-store_register (int regnum)
-{
- /* NOTE: cagney/2001-12-04: Legacy targets were using fetch/store
- pseudo-register as a way of handling registers that needed to be
- constructed from one or more raw registers. New targets instead
- use gdbarch register read/write. */
- if (STORE_PSEUDO_REGISTER_P ()
- && pseudo_register (regnum))
- STORE_PSEUDO_REGISTER (regnum);
- else
- target_store_registers (regnum);
-}
-
/* Low level examining and depositing of registers.
The caller is responsible for making sure that the inferior is
gdb gives control to the user (ie watchpoints). */
alloca (0);
- for (i = 0; i < NUM_REGS + NUM_PSEUDO_REGS; i++)
+ for (i = 0; i < current_regcache->descr->nr_raw_registers; i++)
set_register_cached (i, 0);
if (registers_changed_hook)
}
if (!register_cached (regnum))
- fetch_register (regnum);
+ target_fetch_registers (regnum);
memcpy (myaddr, register_buffer (current_regcache, regnum),
REGISTER_RAW_SIZE (regnum));
}
void
-regcache_read (struct regcache *regcache, int regnum, char *buf)
+regcache_raw_read (struct regcache *regcache, int regnum, void *buf)
{
gdb_assert (regcache != NULL && buf != NULL);
gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers);
registers_ptid = inferior_ptid;
}
if (!register_cached (regnum))
- fetch_register (regnum);
+ target_fetch_registers (regnum);
}
/* Copy the value directly into the register cache. */
memcpy (buf, (regcache->raw_registers
regcache->descr->sizeof_register[regnum]);
}
+void
+regcache_raw_read_signed (struct regcache *regcache, int regnum, LONGEST *val)
+{
+ char *buf;
+ gdb_assert (regcache != NULL);
+ gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers);
+ buf = alloca (regcache->descr->sizeof_register[regnum]);
+ regcache_raw_read (regcache, regnum, buf);
+ (*val) = extract_signed_integer (buf,
+ regcache->descr->sizeof_register[regnum]);
+}
+
+void
+regcache_raw_read_unsigned (struct regcache *regcache, int regnum,
+ ULONGEST *val)
+{
+ char *buf;
+ gdb_assert (regcache != NULL);
+ gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers);
+ buf = alloca (regcache->descr->sizeof_register[regnum]);
+ regcache_raw_read (regcache, regnum, buf);
+ (*val) = extract_unsigned_integer (buf,
+ regcache->descr->sizeof_register[regnum]);
+}
+
+void
+regcache_raw_write_signed (struct regcache *regcache, int regnum, LONGEST val)
+{
+ void *buf;
+ gdb_assert (regcache != NULL);
+ gdb_assert (regnum >=0 && regnum < regcache->descr->nr_raw_registers);
+ buf = alloca (regcache->descr->sizeof_register[regnum]);
+ store_signed_integer (buf, regcache->descr->sizeof_register[regnum], val);
+ regcache_raw_write (regcache, regnum, buf);
+}
+
+void
+regcache_raw_write_unsigned (struct regcache *regcache, int regnum,
+ ULONGEST val)
+{
+ void *buf;
+ gdb_assert (regcache != NULL);
+ gdb_assert (regnum >=0 && regnum < regcache->descr->nr_raw_registers);
+ buf = alloca (regcache->descr->sizeof_register[regnum]);
+ store_unsigned_integer (buf, regcache->descr->sizeof_register[regnum], val);
+ regcache_raw_write (regcache, regnum, buf);
+}
+
void
read_register_gen (int regnum, char *buf)
{
legacy_read_register_gen (regnum, buf);
return;
}
- gdbarch_register_read (current_gdbarch, regnum, buf);
+ regcache_cooked_read (current_regcache, regnum, buf);
+}
+
+void
+regcache_cooked_read (struct regcache *regcache, int regnum, void *buf)
+{
+ gdb_assert (regnum >= 0);
+ gdb_assert (regnum < regcache->descr->nr_cooked_registers);
+ if (regnum < regcache->descr->nr_raw_registers)
+ regcache_raw_read (regcache, regnum, buf);
+ else
+ gdbarch_pseudo_register_read (regcache->descr->gdbarch, regcache,
+ regnum, buf);
}
+void
+regcache_cooked_read_signed (struct regcache *regcache, int regnum,
+ LONGEST *val)
+{
+ char *buf;
+ gdb_assert (regcache != NULL);
+ gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers);
+ buf = alloca (regcache->descr->sizeof_register[regnum]);
+ regcache_cooked_read (regcache, regnum, buf);
+ (*val) = extract_signed_integer (buf,
+ regcache->descr->sizeof_register[regnum]);
+}
+
+void
+regcache_cooked_read_unsigned (struct regcache *regcache, int regnum,
+ ULONGEST *val)
+{
+ char *buf;
+ gdb_assert (regcache != NULL);
+ gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers);
+ buf = alloca (regcache->descr->sizeof_register[regnum]);
+ regcache_cooked_read (regcache, regnum, buf);
+ (*val) = extract_unsigned_integer (buf,
+ regcache->descr->sizeof_register[regnum]);
+}
/* Write register REGNUM at MYADDR to the target. MYADDR points at
REGISTER_RAW_BYTES(REGNUM), which must be in target byte-order. */
static void
-legacy_write_register_gen (int regnum, char *myaddr)
+legacy_write_register_gen (int regnum, const void *myaddr)
{
int size;
gdb_assert (regnum >= 0 && regnum < (NUM_REGS + NUM_PSEUDO_REGS));
memcpy (register_buffer (current_regcache, regnum), myaddr, size);
set_register_cached (regnum, 1);
- store_register (regnum);
+ target_store_registers (regnum);
}
void
-regcache_write (struct regcache *regcache, int regnum, char *buf)
+regcache_raw_write (struct regcache *regcache, int regnum, const void *buf)
{
gdb_assert (regcache != NULL && buf != NULL);
gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers);
memcpy (register_buffer (regcache, regnum), buf,
regcache->descr->sizeof_register[regnum]);
regcache->raw_register_valid_p[regnum] = 1;
- store_register (regnum);
+ target_store_registers (regnum);
}
void
legacy_write_register_gen (regnum, buf);
return;
}
- gdbarch_register_write (current_gdbarch, regnum, buf);
+ regcache_cooked_write (current_regcache, regnum, buf);
+}
+
+void
+regcache_cooked_write (struct regcache *regcache, int regnum, const void *buf)
+{
+ gdb_assert (regnum >= 0);
+ gdb_assert (regnum < regcache->descr->nr_cooked_registers);
+ if (regnum < regcache->descr->nr_raw_registers)
+ regcache_raw_write (regcache, regnum, buf);
+ else
+ gdbarch_pseudo_register_write (regcache->descr->gdbarch, regcache,
+ regnum, buf);
}
/* Copy INLEN bytes of consecutive data from memory at MYADDR
myaddr + (overlapstart - myregstart),
overlapend - overlapstart);
- store_register (regnum);
+ target_store_registers (regnum);
}
}
}
+/* Perform a partial register transfer using a read, modify, write
+ operation. */
+
+typedef void (regcache_read_ftype) (struct regcache *regcache, int regnum,
+ void *buf);
+typedef void (regcache_write_ftype) (struct regcache *regcache, int regnum,
+ const void *buf);
+
+void
+regcache_xfer_part (struct regcache *regcache, int regnum,
+ int offset, int len, void *in, const void *out,
+ regcache_read_ftype *read, regcache_write_ftype *write)
+{
+ struct regcache_descr *descr = regcache->descr;
+ bfd_byte *reg = alloca (descr->max_register_size);
+ gdb_assert (offset >= 0 && offset <= descr->sizeof_register[regnum]);
+ gdb_assert (len >= 0 && offset + len <= descr->sizeof_register[regnum]);
+ /* Something to do? */
+ if (offset + len == 0)
+ return;
+ /* Read (when needed) ... */
+ if (in != NULL
+ || offset > 0
+ || offset + len < descr->sizeof_register[regnum])
+ {
+ gdb_assert (read != NULL);
+ read (regcache, regnum, reg);
+ }
+ /* ... modify ... */
+ if (in != NULL)
+ memcpy (in, reg + offset, len);
+ if (out != NULL)
+ memcpy (reg + offset, out, len);
+ /* ... write (when needed). */
+ if (out != NULL)
+ {
+ gdb_assert (write != NULL);
+ write (regcache, regnum, reg);
+ }
+}
+
+void
+regcache_raw_read_part (struct regcache *regcache, int regnum,
+ int offset, int len, void *buf)
+{
+ struct regcache_descr *descr = regcache->descr;
+ gdb_assert (regnum >= 0 && regnum < descr->nr_raw_registers);
+ regcache_xfer_part (regcache, regnum, offset, len, buf, NULL,
+ regcache_raw_read, regcache_raw_write);
+}
+
+void
+regcache_raw_write_part (struct regcache *regcache, int regnum,
+ int offset, int len, const void *buf)
+{
+ struct regcache_descr *descr = regcache->descr;
+ gdb_assert (regnum >= 0 && regnum < descr->nr_raw_registers);
+ regcache_xfer_part (regcache, regnum, offset, len, NULL, buf,
+ regcache_raw_read, regcache_raw_write);
+}
+
+void
+regcache_cooked_read_part (struct regcache *regcache, int regnum,
+ int offset, int len, void *buf)
+{
+ struct regcache_descr *descr = regcache->descr;
+ gdb_assert (regnum >= 0 && regnum < descr->nr_cooked_registers);
+ regcache_xfer_part (regcache, regnum, offset, len, buf, NULL,
+ regcache_cooked_read, regcache_cooked_write);
+}
+
+void
+regcache_cooked_write_part (struct regcache *regcache, int regnum,
+ int offset, int len, const void *buf)
+{
+ struct regcache_descr *descr = regcache->descr;
+ gdb_assert (regnum >= 0 && regnum < descr->nr_cooked_registers);
+ regcache_xfer_part (regcache, regnum, offset, len, NULL, buf,
+ regcache_cooked_read, regcache_cooked_write);
+}
+
+/* Hack to keep code that view the register buffer as raw bytes
+ working. */
+
+int
+register_offset_hack (struct gdbarch *gdbarch, int regnum)
+{
+ struct regcache_descr *descr = regcache_descr (gdbarch);
+ gdb_assert (regnum >= 0 && regnum < descr->nr_cooked_registers);
+ return descr->register_offset[regnum];
+}
+
+static void
+cooked_xfer_using_offset_hack (struct regcache *regcache,
+ int buf_start, int buf_len, void *in_b,
+ const void *out_b)
+{
+ struct regcache_descr *descr = regcache->descr;
+ struct gdbarch *gdbarch = descr->gdbarch;
+ bfd_byte *in_buf = in_b;
+ const bfd_byte *out_buf = out_b;
+ int buf_end = buf_start + buf_len;
+ int regnum;
+ char *reg_buf = alloca (descr->max_register_size);
+
+ /* NOTE: cagney/2002-08-17: This code assumes that the register
+ offsets are strictly increasing and do not overlap. If this
+ isn't the case then the bug is in the target architecture and NOT
+ this code. */
+
+ /* NOTE: cagney/2002-08-17: This code assumes that only the
+ registers covered by BUF_START:BUF_LEN should be transfered. If,
+ for some reason, there is a gap between two registers, then that
+ gap isn't transfered. (The gap shouldn't be there but that is
+ another story.) */
+
+ /* Iterate through all registers looking for those that lie within
+ BUF_START:BUF_LEN. */
+
+ for (regnum = 0; regnum < descr->nr_cooked_registers; regnum++)
+ {
+ /* The register's location. */
+ int reg_start = descr->register_offset[regnum];
+ int reg_len = descr->sizeof_register[regnum];
+ int reg_end = reg_start + reg_len;
+
+ /* The START, END and LEN that falls within the current
+ register. */
+ int xfer_start;
+ int xfer_end;
+ int xfer_len;
+
+ /* start = max (reg_start, buf_start) */
+ if (reg_start > buf_start)
+ xfer_start = reg_start;
+ else
+ xfer_start = buf_start;
+
+ /* end = min (reg_end, buf_end) */
+ if (reg_end < buf_end)
+ xfer_end = reg_end;
+ else
+ xfer_end = buf_end;
+
+ /* The number of bytes to transfer. If there isn't anything to
+ transfer (the end is before the start) this will be -ve. */
+ xfer_len = xfer_end - xfer_start;
+
+ if (xfer_len > 0)
+ regcache_xfer_part (regcache, regnum, xfer_start - reg_start,
+ xfer_len, in_b, out_b, regcache_cooked_read,
+ regcache_cooked_write);
+ }
+}
+
+void
+regcache_cooked_read_using_offset_hack (struct regcache *regcache,
+ int buf_start, int buf_len, void *b)
+{
+ cooked_xfer_using_offset_hack (regcache, buf_start, buf_len, b, NULL);
+}
+
+void
+regcache_cooked_write_using_offset_hack (struct regcache *regcache,
+ int buf_start, int buf_len,
+ const void *b)
+{
+ cooked_xfer_using_offset_hack (regcache, buf_start, buf_len, NULL, b);
+}
/* Return the contents of register REGNUM as an unsigned integer. */
fact, and report it to the users of read_register and friends. */
void
-supply_register (int regnum, char *val)
+supply_register (int regnum, const void *val)
{
#if 1
if (! ptid_equal (registers_ptid, inferior_ptid))
/* NOTE: cagney/2001-03-16: The macro CLEAN_UP_REGISTER_VALUE is
going to be deprecated. Instead architectures will leave the raw
register value as is and instead clean things up as they pass
- through the method gdbarch_register_read() clean up the
+ through the method gdbarch_pseudo_register_read() clean up the
values. */
#ifdef DEPRECATED_CLEAN_UP_REGISTER_VALUE
- DEPRECATED_CLEAN_UP_REGISTER_VALUE (regnum, register_buffer (regnum));
+ DEPRECATED_CLEAN_UP_REGISTER_VALUE \
+ (regnum, register_buffer (current_regcache, regnum));
#endif
}
register_valid = deprecated_grub_regcache_for_register_valid (current_regcache);
}
+static void
+dump_endian_bytes (struct ui_file *file, enum bfd_endian endian,
+ const unsigned char *buf, long len)
+{
+ int i;
+ switch (endian)
+ {
+ case BFD_ENDIAN_BIG:
+ for (i = 0; i < len; i++)
+ fprintf_unfiltered (file, "%02x", buf[i]);
+ break;
+ case BFD_ENDIAN_LITTLE:
+ for (i = len - 1; i >= 0; i--)
+ fprintf_unfiltered (file, "%02x", buf[i]);
+ break;
+ default:
+ internal_error (__FILE__, __LINE__, "Bad switch");
+ }
+}
+
+enum regcache_dump_what
+{
+ regcache_dump_none, regcache_dump_raw, regcache_dump_cooked
+};
+
+static void
+regcache_dump (struct regcache *regcache, struct ui_file *file,
+ enum regcache_dump_what what_to_dump)
+{
+ struct cleanup *cleanups = make_cleanup (null_cleanup, NULL);
+ int regnum;
+ int footnote_nr = 0;
+ int footnote_register_size = 0;
+ int footnote_register_offset = 0;
+ int footnote_register_type_name_null = 0;
+ long register_offset = 0;
+ unsigned char *buf = alloca (regcache->descr->max_register_size);
+
+#if 0
+ fprintf_unfiltered (file, "legacy_p %d\n", regcache->descr->legacy_p);
+ fprintf_unfiltered (file, "nr_raw_registers %d\n",
+ regcache->descr->nr_raw_registers);
+ fprintf_unfiltered (file, "nr_cooked_registers %d\n",
+ regcache->descr->nr_cooked_registers);
+ fprintf_unfiltered (file, "sizeof_raw_registers %ld\n",
+ regcache->descr->sizeof_raw_registers);
+ fprintf_unfiltered (file, "sizeof_raw_register_valid_p %ld\n",
+ regcache->descr->sizeof_raw_register_valid_p);
+ fprintf_unfiltered (file, "max_register_size %ld\n",
+ regcache->descr->max_register_size);
+ fprintf_unfiltered (file, "NUM_REGS %d\n", NUM_REGS);
+ fprintf_unfiltered (file, "NUM_PSEUDO_REGS %d\n", NUM_PSEUDO_REGS);
+#endif
+
+ gdb_assert (regcache->descr->nr_cooked_registers
+ == (NUM_REGS + NUM_PSEUDO_REGS));
+
+ for (regnum = -1; regnum < regcache->descr->nr_cooked_registers; regnum++)
+ {
+ /* Name. */
+ if (regnum < 0)
+ fprintf_unfiltered (file, " %-10s", "Name");
+ else
+ {
+ const char *p = REGISTER_NAME (regnum);
+ if (p == NULL)
+ p = "";
+ else if (p[0] == '\0')
+ p = "''";
+ fprintf_unfiltered (file, " %-10s", p);
+ }
+
+ /* Number. */
+ if (regnum < 0)
+ fprintf_unfiltered (file, " %4s", "Nr");
+ else
+ fprintf_unfiltered (file, " %4d", regnum);
+
+ /* Relative number. */
+ if (regnum < 0)
+ fprintf_unfiltered (file, " %4s", "Rel");
+ else if (regnum < NUM_REGS)
+ fprintf_unfiltered (file, " %4d", regnum);
+ else
+ fprintf_unfiltered (file, " %4d", (regnum - NUM_REGS));
+
+ /* Offset. */
+ if (regnum < 0)
+ fprintf_unfiltered (file, " %6s ", "Offset");
+ else
+ {
+ fprintf_unfiltered (file, " %6ld",
+ regcache->descr->register_offset[regnum]);
+ if (register_offset != regcache->descr->register_offset[regnum]
+ || register_offset != REGISTER_BYTE (regnum)
+ || (regnum > 0
+ && (regcache->descr->register_offset[regnum]
+ != (regcache->descr->register_offset[regnum - 1]
+ + regcache->descr->sizeof_register[regnum - 1])))
+ )
+ {
+ if (!footnote_register_offset)
+ footnote_register_offset = ++footnote_nr;
+ fprintf_unfiltered (file, "*%d", footnote_register_offset);
+ }
+ else
+ fprintf_unfiltered (file, " ");
+ register_offset = (regcache->descr->register_offset[regnum]
+ + regcache->descr->sizeof_register[regnum]);
+ }
+
+ /* Size. */
+ if (regnum < 0)
+ fprintf_unfiltered (file, " %5s ", "Size");
+ else
+ {
+ fprintf_unfiltered (file, " %5ld",
+ regcache->descr->sizeof_register[regnum]);
+ if ((regcache->descr->sizeof_register[regnum]
+ != REGISTER_RAW_SIZE (regnum))
+ || (regcache->descr->sizeof_register[regnum]
+ != REGISTER_VIRTUAL_SIZE (regnum))
+ || (regcache->descr->sizeof_register[regnum]
+ != TYPE_LENGTH (register_type (regcache->descr->gdbarch,
+ regnum)))
+ )
+ {
+ if (!footnote_register_size)
+ footnote_register_size = ++footnote_nr;
+ fprintf_unfiltered (file, "*%d", footnote_register_size);
+ }
+ else
+ fprintf_unfiltered (file, " ");
+ }
+
+ /* Type. */
+ if (regnum < 0)
+ fprintf_unfiltered (file, " %-20s", "Type");
+ else
+ {
+ static const char blt[] = "builtin_type";
+ const char *t = TYPE_NAME (register_type (regcache->descr->gdbarch,
+ regnum));
+ if (t == NULL)
+ {
+ char *n;
+ if (!footnote_register_type_name_null)
+ footnote_register_type_name_null = ++footnote_nr;
+ xasprintf (&n, "*%d", footnote_register_type_name_null);
+ make_cleanup (xfree, n);
+ t = n;
+ }
+ /* Chop a leading builtin_type. */
+ if (strncmp (t, blt, strlen (blt)) == 0)
+ t += strlen (blt);
+ fprintf_unfiltered (file, " %-20s", t);
+ }
+
+ /* Value, raw. */
+ if (what_to_dump == regcache_dump_raw)
+ {
+ if (regnum < 0)
+ fprintf_unfiltered (file, "Raw value");
+ else if (regnum >= regcache->descr->nr_raw_registers)
+ fprintf_unfiltered (file, "<cooked>");
+ else if (!regcache_valid_p (regcache, regnum))
+ fprintf_unfiltered (file, "<invalid>");
+ else
+ {
+ regcache_raw_read (regcache, regnum, buf);
+ fprintf_unfiltered (file, "0x");
+ dump_endian_bytes (file, TARGET_BYTE_ORDER, buf,
+ REGISTER_RAW_SIZE (regnum));
+ }
+ }
+
+ /* Value, cooked. */
+ if (what_to_dump == regcache_dump_cooked)
+ {
+ if (regnum < 0)
+ fprintf_unfiltered (file, "Cooked value");
+ else
+ {
+ regcache_cooked_read (regcache, regnum, buf);
+ fprintf_unfiltered (file, "0x");
+ dump_endian_bytes (file, TARGET_BYTE_ORDER, buf,
+ REGISTER_VIRTUAL_SIZE (regnum));
+ }
+ }
+
+ fprintf_unfiltered (file, "\n");
+ }
+
+ if (footnote_register_size)
+ fprintf_unfiltered (file, "*%d: Inconsistent register sizes.\n",
+ footnote_register_size);
+ if (footnote_register_offset)
+ fprintf_unfiltered (file, "*%d: Inconsistent register offsets.\n",
+ footnote_register_offset);
+ if (footnote_register_type_name_null)
+ fprintf_unfiltered (file,
+ "*%d: Register type's name NULL.\n",
+ footnote_register_type_name_null);
+ do_cleanups (cleanups);
+}
+
+static void
+regcache_print (char *args, enum regcache_dump_what what_to_dump)
+{
+ if (args == NULL)
+ regcache_dump (current_regcache, gdb_stdout, what_to_dump);
+ else
+ {
+ struct ui_file *file = gdb_fopen (args, "w");
+ if (file == NULL)
+ perror_with_name ("maintenance print architecture");
+ regcache_dump (current_regcache, file, what_to_dump);
+ ui_file_delete (file);
+ }
+}
+
+static void
+maintenance_print_registers (char *args, int from_tty)
+{
+ regcache_print (args, regcache_dump_none);
+}
+
+static void
+maintenance_print_raw_registers (char *args, int from_tty)
+{
+ regcache_print (args, regcache_dump_raw);
+}
+
+static void
+maintenance_print_cooked_registers (char *args, int from_tty)
+{
+ regcache_print (args, regcache_dump_cooked);
+}
+
void
_initialize_regcache (void)
{
/* Initialize the thread/process associated with the current set of
registers. For now, -1 is special, and means `no current process'. */
registers_ptid = pid_to_ptid (-1);
+
+ add_cmd ("registers", class_maintenance,
+ maintenance_print_registers,
+ "Print the internal register configuration.\
+Takes an optional file parameter.",
+ &maintenanceprintlist);
+ add_cmd ("raw-registers", class_maintenance,
+ maintenance_print_raw_registers,
+ "Print the internal register configuration including raw values.\
+Takes an optional file parameter.",
+ &maintenanceprintlist);
+ add_cmd ("cooked-registers", class_maintenance,
+ maintenance_print_cooked_registers,
+ "Print the internal register configuration including cooked values.\
+Takes an optional file parameter.",
+ &maintenanceprintlist);
+
}
projects / deliverable / binutils-gdb.git / blobdiff